Hi Stefan, We recently updated our EXAFS Neo analysis package to work with the new version of Larch. I installed Larch using the detailed instructions on our GitHub site on a number of Macs* running OS X 12.x this weekend. https://github.com/laumiulun/EXAFS-Neo-Public If you want to use the Larch GUIs, you need to take the additional step of: larch -m Which puts links to the GUIs on the desktop. Our code calls uses larch Python routines so we have developed a fairly robust procedure for making sure larch installs correctly on all operating systems. Hope that helps. Jeff *all M1 machines but I don’t expect it will make a difference Jeff Terry Interim Chair, Department of Social Sciences Professor of Physics Professor of Mechanical, Materials, and Aerospace Engineering Editor, Applied Surface Science Illinois Institute of Technology 3101 S. Dearborn St. Chicago IL 60616 630-252-9708 Sent from my iPhone

On Feb 9, 2022, at 2:05 AM, Mangold, Stefan (IPS) wrote: Dear all,

I upgraded a machine to 12.2 (MacPro), Larch was installed via binary installer. Afterwards Larch didn’t launch. I did a re-install with the binary installer and this didn’t work, because already installed. deleted it, but this also didn’t work

tried

pip install xraylarch

stopped with ERROR: Failed building wheel for fabio Failed to build fabio

also no director with XAS viewer created.

best regards

Stefan Mangold

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